Crystal (image) UT Southwestern Medical Center Share Print E-Mail Caption Researchers at the Peter O'Donnell Jr. Brain Institute grew crystals of nicotinic receptors, a breakthrough that scientists expect will help them develop new treatments by understanding nicotine's molecular effects. Credit Hibbs Lab, UT Southwestern Medical Center Usage Restrictions With source credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.